5. Female subject that is willing to use an effective method of contraception for the duration of the study, is permanently sterilized, or post-menopausal as defined by cessation of menses for at least twelve (12) months prior to enrollment. Acceptable means of contraception is defined as use of Birth control pills, Depo Provera® , Norplant® , IUD (intrauterine device), Diaphragm with spermicide, Condom with spermicide